Desibjg dei



D. DELBEY.

oAcco PIPE.

APPLICATION FILED FEB.II.19I8.

Pamnd Aug. 19, 1919.

IN VEN TOR.

e Desi f Deza?,

,21% A TTOR NE Y.

DESIR DELBEY, F SAN FRANCISCO, CALIFORNIA.

TOBACCO-PIPE.

. Specification of Letters Patent.

Application med February 11, 1918. Serial No. 216,546.

.-.To all whom it may concern.'

Be it known that I, DEsiR DELBEY, a citizen of the Republic of France, and a resident ofthe cit and county of San Francisco, State of alifornia, have made a new and useful invention-to wit, Improvements in Tobacco-Pipes; and I do hereby declare ful essential oils the following to be a full, clear, concise, and exact description of the same. The invention relates part1cular1y to radiating or circulating systems within which a maximum length of conduit is incorporated within the minimum amount of space, such as heating radiators, smoking pipes and the like.

,In the present embodiment of the invention, it is the object to increase the length of the smoke passage in pipe stems between the combustion bowl and the mouth piece, to accomplish cooling of the smoke before it reaches the mouth of the smoker; to accomplish condensation of liquid from the smoke, and the removal of nicotin and other harmtherefrom. Other objects and advantages will appear as this description progresses.

In this speciication and the annexed drawings, the invention is illustrated in the form considered to be the best, but it is to be understood that the invention is not limitedl to such form because it may be embodied in other forms, and it is also to be under! stood that in and by the claims following the description, 1t 1s desired to cover the 1nvention in whatever form it may be embodied.

In the accompanying one sheet of drawings:

Figure 1 is a longitudinal cross section of a smoking pipe having this `invention applied to the stem thereof.

Fig. .2 is a plan view from above of the conduit unit.

Fig. 3 is a similar view from below.

Fig. 4- is-a cross section of the same on the line IV-IV Fig. 1.

Fig. 5 is a longitudinal section of the same taken on the line V-V, Fig. 4.

Fig. 6 is a diagrammatic plan of the perimeter of the inner shell of the conduit laid fiat.

Fig. 7 is a similar view of the intermediate shell similarly treated; and

Fig. Sis a similar view of the outside shell.

. In detail the construction illustrated inl the drawing` in Fig. l shows a conventional vcomplish the result of a long t type bowl 1 having its stem 2 and a mouth Patented Aug. 1a, 1919.',2'

piece 3 or bit, the specific form of which is not ermane to this invention, as it has other a p 1cat1ons,some of which will be cited in t e followm description.

The smokmg of tobacco in the conventional pipe has certain disadvantages, such as the drawing of hot moist'smoke into the mouth of the smoker. This is ob viated in various ways by increasing the length of the pipe stem, the mechanical inconvenience of winch is manifest, and by interposing absorbmg mediums in the path of the smoke. It 1s one of the objects of this invention to acstem within and conventhe limits of a compactly bui that may in every other iently sized pipe,

respect be conventional in design. The outer shell 4 of the conduit is preferably cylindrical and slightly tapered from one end to the other, to fit the similarly tapered cylindrical interior of the pipe stem 2 within which it ts snugly. The surface of this outer shell is provided with the continuous serpentine passages 5, sunken into the surface thereof, and beginning at; the point 6 open through the ends of the shell and terminating at the point 7 in the transverse hole 8. This passage 5 may be formed with return bends and eX- tend longitudinally of'the shell, as shown in the drawings, or it may be cut spirally around the exterior of the shell, depending largely upon the manner of fabrication of the part in its production. The intermediate shell 9 is similar to 4 being slightly tapered to fit snugly therein, and has its surface perimeter similarly provided with the groove 10 beginning at 11 and terminating 1n the hole 12. When the intermediate shell 9 is inserted within the shell 4, the point 11 is registered with the hole 8 as indicated by the index line Z. The inner shell 1'3 is simllarly tapered and formed to fit snugly within the intermediate shell 9, and is provided with the continuous groove 14, beginning at 15, and ending in the hole 16 leading into the hollow interior. All of these various shells are grooved on their exteriors, and finish smooth on their interiors, whereby the interior of one coperates with the exterior of the one within, to convert the grooves 5, 9 and 14 into continuous interspaced passages. The very slight tapered iit between these shells holds them frictionally in snug assembly, from which position they may be easily disassembled by pressure on their exg separate them for the purpose of cleaning,

whlch is occasionally necessary, when this invention isapplied to a.ppe or other conditions wherein there is condensation to be disposed of. yFor convenience in illustration, the grooves 5, 9- and 14 areshown of different widths which is not a necessary vfeature of this invention, as all the grooves may be of the same width, it being obvious that the smaller the grooves, and the closer they are placed to ether, the greater the combined vlength o forming the conduit. It is possible to form a conduit 4 feet in length within the confines of the average length of pipe stem, if such a condition is desirable.

This invent-ion operates substantially as follows: Suction on the bit 3 initiates a draft through the bowl 1 and itsy communicating passages, to the inlet 6 of the groove in the' outer shell 4, carrying the smoke" throughout the length of the grooves in this shell from which it escapes through `the hole 8 into the initial point 11 in the intermediate shell,

. within which it passes the full length of the grooves therein to the outlet hole 12, fcommunicating with4 the initial point 15 in the inner shell 13, passing throughout its length and through the outlet hole 16 into the center of the inner shell, which may be lled with a suitable fibrous packing, 'suchas 17, of an ab-V sorbent nature calculated lto; condense vand lter'out the nicotin and" ,otherl harmful essential oils before thesmokejpasses into the bit A3 and thence into the mouth of. the smoker. It is obvious that the lsmoke starting ht from the bowl 1, in passing through this serpentine conduit will give olf itsv heat by radiation through thebody of the` material forming the various shells .4, 9 and 14 iand the stem 2 of the pipe, thus accomplishingthe pipesmokers .ideal of a cool, dry, l

sweet smoke, carrying the flavor of the tobacco without its deleterious e'ects.

the various grooves,

' jacent ends joined nsiapee Itis desirable to remove the conduit from the'stem 2 occasionally for the pur ose of.

ridding it of condensed liquids therein, also will better absorb the heat duringthe next are placed `with theirfsmaller ends downl ward, so that the4 unit will be supported within the stem, by the tapered sides, I provide the button 18 for finger pressure which is also a convenient means for initiating disassembly of the various shells. v

The various parts of the `unit mayglend themselves tofabrication by die casting in metal, or molding in various suitable materials, such as white ber and the like.

` Having thus described this invention,

what I claim and desire torsecure by Letters` Patent is v 1. yA tobacco'pipe comprisingan outer hol low-stem;` a plurality of hollowshells tele.-

scoping within said stem and resting in surface contact, and having continuous grooves pipe `terra-cotta, rubin their outer/surfaces and having their ad-,`

through said shells.

by `transverse passages 2. A tobacco pipe oomprisin an outer f hollow stem; `a plurality'of hol ow tapered shells telescoping within 'saidfstemand.rest-v ing vin surface contact, and; lia'flvi'gng *continu-"p ous groovesl in theirCmt'erl surfacesf-fanclfha',i A

ing theirl adjacent ends-joined*by'transverse passages through said shells,and lan absorbent core in the center vshell adjacent the .mouthpiece of said pipe. ,y

In testimony' whereof, I have hereuntoset my hand at San Francisco, California, this 26th day of January 1918.

DESIRE `In presence of- LINCOLN V. JoHN'soN, i A. J, HENRY. v

DELBY. 

